Ventilating plant for goods piled up such as grain



April 9 1940. A GRQNERT I Z,l96,391

VENTILATING PLANT FOR GOODS FILED UP sUcH AS GRAIN Filed Jan. 21, 1937 2Sheis-Sheet 1 17,.1' E6 E! El 453 7 Inventor: AUGUST GHONERT p i 1940-A. GRONE'RT 2,196,391

VENTILATING PLANT FOR GOODS PILED UP SUCH AS GRAIN- Filed Jan. 21. 19372 Sheets-Sheet 2 Inventor: l AUGllsT GRonEfiT a, lfim/LSfiMm v ATTIRNIYiatented Apr. 9, 1940 v UNITED STATES VENTILATING PLANT FOR GOODS P ILEDUP SUCH AS GRAIN August Gronert, Furstenwalde-on-the- Spree,

Germany Application January 21,1937, Serial No. 121.642 7 In GermanyJanuary 21, 1936 v 2 Claims.

My invention relates to a plant for ventilating and eventually at thesame time drying of goods piled "upsuch as grain or other granular goodson the ground or in store houses of any kind.

One point of my invention is to'provide a ventilating plant containing amain air supply element and distributing elements connected to it andlying on the ground or on the floor of the store house etc. which can beeasily erected or 10 dismantled and stored away, all the parts of theplant beingmovable.

A further-point of my invention is to prevent .any parts of the goodspiled up, regardless how small they maybe, from entering into the air 15conducting and distributing elements which are connected together and toprevent clogging of the pipe line system formed by the elements.

' A' further point of my invention is to provide not expensive andsimple shapes and arrange- 90 ments of the distributing elements so thatthe elements and the ventilating system can be assembled anddisassembled easily and do not take much space for storing when they arenot used.

A further point is that the air flow is safely led 25 into the goodsquite uniformly at all points of the distributing system. At the sametime the driving power needed for 'pres'singthe air-through the systemand into the goods is relatively small. A further point isto provide adevice in which one fan with or without an air heater can be readilyused in connection with a number of ventilating systems which may beinstalled at different parts, departments orboxes of a store place orstore house.

Other purposes, advantages and objects of my invention will beunderstood from the following description of the drawings showing someembodiments of my invention.

Fig. 1 is a view of three compartments of a 40 store house supplied withventilating plants according to my invention. I

Fig. 2 is a view of a ventilating plant wit an air heater showing theconnecting tube between the both.

Fig. 3 shows a different connecting arrangement between the ventilatingsystem and the air heater.

Fig. 4'is a sectional'view of a distributing element.

Fig. 5 shows a different cross section of a distributing element.

Figs. 6 and 7 are the cross section and a side view of a distributingelement the edges of the side walls being inclined to approach eachother. 55 Figs. 8 and 9 are the cross section and side view 1 Fig. 12shows diagrammatically a fragmentary view of, the main air conductor andthe joints of the branching off distributing elements. f

Fig. 13 is a section, of .a distributing element consisting of twoparts. v

Fig. 14 shows the two parts of Fig. 13 disassembled and the similarparts piled up for storing purposes. I

Fig. 15 shows a distributing element consistingof two different parts inside elevation and front view.

Fig. 16 is a, cross section on a larger scale of an element similar toFig. 13. i

Fig. 17 is a fragmentary side view of the same element. y

, Figs. 18 and 19 show a further form of a distributing element in frontsection and side elevation.

According to Fig. 1 three boxes of a store house are separated by wallsi from one another and each provided with a ventilating plant accordingto my invention. In two boxes the goods 2 are heaped up and cover thedistributing elements of the ventilating plant while in the third box atthe right hand side the plant is erected but the grain or other goods isor are not yet poured onto it.

The plant comprises a main air conducting element 3 and distributingelements 4 branching off. The main element and the distributing elementsare provided withair outlets or perforations. There is. a separate plantwith a main conducting element and a number of distributing elementsprovided for each one of the compartments or boxes. The end piece of themain element is turned upwards forming a bow 5 withan essentiallyhorizontal inlet opening 6. At the inlet end of the bow a pump or fan,preferably an axial fan 1 is connected, in such a way that it can easilybe disconnected e. g. by lifting the fan, or the fan can be introducedinto the bow end and removed when it is not used. As in many cases atemporary or intermittent ventilation is sufiicient a removable fan Ican be easily used in connection with a number of ventilating plantsaccording to the invention. Fig. 1 shows the fan I. mounted on the mainair conductor 3 of. the left hand box and the. fan motor connected by acable 2 to a plug 9 and switch or the like of the main electric supplysystem. When the ventilation of the left hand box is finished the fancan be removed and mounted on the main air conducting element of anotherbox. Of course more than one fan and eventually a separate fan for eachbox can be provided.

Fig. 2 shows the bow end 5 of the main element 3, a fan I which can bequickly disconnected from the bow end, a. tube arrangement l2 hanging onropes l I or supported by trestles on the floor and connecting the bow 5with an air heater III which is heated by gas, steam or a fire. The endof the tube l2 near the. fan is provided with a funnel piece 13 whichcan be movable and adjusta-' able in a certain position. By the positionof the funnel I! the clearance between the tube 12 (funnel edge) and thebow 5 can be increased or decreased so that difierent mixtures of theheated air and the cooler atmosphere can be attained at will.

Fig. 3 shows another method of connecting the main element 3 of theventilating plant for piled up goods 2 with an air heater [4. By the fan'1 hot air is sucked in from the heater l4 and pressed through the airconducting element 3 and outlets 15 into the goods 2 as indicated by thearrows l5. As seeds cannot stand a high temperature an automaticpyrometer of a known design is provided. It consists of a detent body I!connected by a lever arrangement l8 to a damper plate I! or valvethrough which fresh air is added to the heated air. The damper is socontrolled that enough fresh air is mixed to the hot air to avoid thesurpassing of a maximum temperature which is given for certain goods.

The main air conducting element 3 as well as the conducting anddistributing elements 4 consist of elements or pieces which are joinedtogether, e. g. by introducing the ends' of one element into the end ofthe adjoining element. The elements can have a roof-like, angular, orchannel shaped cross section which is open at the bottom as is indicatedin Figs. 4 to 9. When they are not used the elements according to Fig.14 can be put one into the other so that a small space is only neededfor storing. The elements can be connected together like a telescope. Inorder to have elements of the same diameter and bore a butt-joining ofthe elements is preferred. The

clearance between two joining elements is bridged by a shell-like piecewhich can be riveted at 2| to one element and overlaps the other. Suchconnections are shown by Figs. 15, l'land 19. The air outlets 22 of thedistributing system 4 can be formed and arranged differently. Accordingto Fig. 4 the outlets are near the lower edges of the channel-likeelement but are surrounded by the wall material. According to Figs. 5-10the air outlets 22 are perforations in the side walls of the elementswhich are partly inclined and bent or curved inwards at 23. According toFigs. 5-7 the outlet openings are surrounded by the wall material.According to Figs. 8-10 the outlets are slots cut in from the edge partof the channel elements.

In any case the distributing elements 3, 4 are provided with baflies 24ata given angle opposite to the direction of flow of the air. By thebaflles the air is forced sideways into the goods. The baflies 24 can beformed from the sheet material adjacent to the outlets or perforations22.

In Figs. 10-11 the direction of the air flow is indicated by the arrows3| and the action of the battles 24 branching oil the air sideways isobvious. According to Figs. 8-10 the outlets 22 and baflles 24 are closetogether at the edges of the elements 4 resting on the ground.Preferably baflies are provided as well at outlets which are surroundedby the wall material.

At the joints of the main air way 3 and the distributing elements 4baiiles 24' are provided as well to force corresponding parts of the airinto the branches 4 as shown in Fig. 12. The distributing elements 3, 4of the ventilating system can have a ,closed cross section. Then the airoutlet openings are arranged at the bottom part or near it. The closedcross section can be formed from two parts which are connected atlongitudinal lines and can be disconnected easily as shown in Figs.13-19.

According to Fig.'13 the elements consist of a roof-like upper part 4and a removabiy connected bottom plate 25. The connection is formed bysliding the bent rim of the part 4 into the folded rim 21 of the part25. When they are not used the plates 25 are drawn out of the parts 4and the plates as well as the channel or rooflike parts 4 can be piledup for storing purposes.

Fig. 15 shows a two part element of a similar shape, but having leg 28aflixed to the bottom plate 25 e. g. by rivets 29, and the air outletperforations 22 and battles 24 arranged at the bottom.

Figs. 16 and 17 correspond to Figs. 13 and 14 but the outlets 22 arearranged at an angle.

Figs. 18 and 19 show a different bottom part 25 with sloping edges wherethe outlets 22 are arranged.

I claim:

1. A ventilating plant for goods piled up such as grain, comprisingsubstantially horizontally laid perforated conducting and distributingelements, a main supply element connected to them, and means for feedingair to said supply element, the distributing elements consisting each ofa substantially V-shaped upper part and a bottom part having side wallsinclined so as to converge towards the bottom, said upper part and saidbottom part being removabiy connected to each other and the perforationsof said distributing elements being arranged only in said inclined sidewalls of said bottom part.

2. A ventilating plant for goods piled up such as grain, comprisingsubstantially horizontally laid perforated conducting and distributingelements, 2. main supply element connected to them, means for feedingair to said main supply element, and baflles within said distributingelements adjacent the perforations thereof, the said distributingelements having an upper portion of roof-like shape and a lower portionwith side walls inclined so as to converge towards the bottom, and theperforations and the baiiies being farranged only in the inclinedportions of said side walls.

' AUGUST GRONERT.

